Storage battery



FIG. 1 is a front, right, upper perspective view of a storage battery showing our new design;

FIG. 2 is a rear, left, lower perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom side view thereof.

The broken lines shown in the figures depict portions of the storage battery that form no part of the claimed design. 

CLAIM The ornamental design for a storage battery, as shown and described. 